Shenzhen D.F.L. Investment&Development Co., Ltd. was established in 1997, as a main member of China National Chemical Supply&Sales (group) Corporation, Beijing. It is specialized in Import&Export and domestic trade of SULPHUR, SULFURIC ACID, YELLOW PHOSPHORUS, RED PHOSPHORUS, PHOSPHORIC ACID, SODIUM TRIPOLYPHOSPHATE, PHOSPHORUS PENTASULFIDE, CHEMICAL FERTILIZER, DAP, MAP, TSP, SSP and PHOSPHORITE, etc. In early 1999, D.F.L. invested and set up Gaoyao D.F.L. Agricultural Development Co., Ltd. engaged in developing and popularizing peat products, humate products, compound fertilizer adhesive, peat organic fertilizers, peat organic and inorganic compound fertilizers, water-coal slurry additives and organic agriculture. In 2003, the company invested and held Yunnan-based phosphorite resources with the reserves of 8 million tons and yearly processes 300,000 tons of scrubbed minerals, special phosphorus-ammonium-used scrubbed mineral, special yellow-phosphorus-used scrubbed mineral and 90-mesh phosphorite powder, becoming new growth point of the company's development